package cn.edu.scau.cmi.wujiaxian.exercise7;

interface SpeakHello {
	void speakHello();
}

class Chinese implements SpeakHello {
	public void speakHello() {
		System.out.println("中国人习惯问候语：你好，吃饭了吗？");
	}
}

class English implements SpeakHello {
	public void speakHello() {
		System.out.println("英国人习惯问候语：你好，天气不错");
	}
}

class KindHello {
	public void lookHello(SpeakHello hello) {
		hello.speakHello();
	}
}

public class Example7_4 {
	
	
	public static void main(String[] args) {
		KindHello kindHello = new KindHello();
		kindHello.lookHello(new Chinese());
		kindHello.lookHello(new English());
	}
}
